The first ski resort in Canada and the 2nd in North America is Mont-Tremblant Quebec, opened in February 1939.
source: http://www.monttremblantpropertyforsale.com/mont-tremblant-resort.HTML
There are a couple of popular ski slopes in Canada. Some of those ski slopes are located at the following resorts: Kicking Horse Resort, Fernie Alpine Resort, and Red Resort.
Blue Mountain Resort is a ski resort located in Ontario, Canada, just northwest of Collingwood. With about 750'000 lift tickets sold it is the third-busiest ski resort in Canada.
Whistler Blackcomb
The Whitetail Ski Resort is located in Pennsylvania in the Two Top area of the Tuscarora Mountains. The Whitetail ski resort is 1.5 miles from the Whitetail Golf Resort.
Vermont or Quebec in Canada
The Wentworth Ski Resort is located in Truro Nova Scotia Canada. It has many different resorts for skiing, snowboarding, and lessons for the beginners.
Holiday Mountain Ski & Golf Resort is located 1/2 mile west of the village of LaRiviere in Manitoba Canada.
Kicking Horse is a ski resort town in BC, Canada
Whistler Blackcomb. It has over 8000 acres of terrain.
Assuming that the "Big White Ski resort" is meant here: this resort is located in the province "British Columbia" in Canada. The resorts offers a great variety of different ski attractions with different skill levels.
the biggest ski resort in the us is big ski ski resort in Montana it is also the second biggest in north America
Big White Ski resort is located 56km southeast of Kelowna in the southern interior of British Colombia, Canada. The resort lies on Big White Mountain which is the highest summit in the Okanagan Highland.